Improvement in supplying steam to traveling-engines



EMILE LAMM.

-improvement in Supplying Steam to Travelling Engines.

N0. 125,577, PatentedApril9,1872.'v

UNITED STATES PATENT OFFICE.

` EMILE LAMM, OF NEW ORLEANS, LOUISIANA.

IMPROVEMENT IN SUPPLYING STEAM TO TRAVELING-ENGINES.

Speciiication forming part of Letters Patent No. 125,577, dated April 9, 1872.

SPECIFICATION.

Objects of any Invention.

The purpose of my invention is to store heat in a mass of water, or superheat the water until its temperature corresponds in a steamboiler to two hundred pounds pressure to the square inch, more or less. I then drive this superheated water into a strong iron reservoir placed on a street-car, or other vehicle to which a steamengine connected with the abovenamed reservoir is adapted. The following phenomenon then takes place: The surplus heatwhich has been produced in the stationary boiler is carried along with the water when transferred into the reservoir on the car. This superadded or stored heat, without any additional fire on the ear, causes fifteen per cent. of the water in the reservoir to iiy ofic into steam, with an average pressure of one hundred pounds to the square inch, thereby enabling the car to run a distance of at least seven or eight miles. The above results are owing to the large capacity of water for heat.

By reference to the drawing hereto annexed and letters thereon my invention will be easily understood. y

A is the reservoir on the car, containing the superheated water driven out of the stationary boiler. The sole and great difference between the reservoir A and the ordinary cylindrical steam-boiler is in its neither having nor requiring a furnace or re for workingy the engine. It is well covered with non-conducting material so as to prevent, as much as possible, all radiation of heat into the atmosphere. B is an ordinary steam-engine, it is connected in the usual manner with the uppermost end of reservoir A, by means of the pipe G. D is the exhaust-pipe. The pipe E serves to drive the required charge of superh eated water from the stationary steam-boiler at the beginning, and to discharge it from the reservoir at the end of each trip.

I will now explain the practical working of my invention To prepare the car for the days work, I put the reservoir A together with the engine in steam-connection with the stationary boiler, by means of pipe E, for the purpose of heating them to the required temperature. As

soon as this is accomplished, the steam from the stationary boiler is cut orf, and lthe reservoir isV pnt in communication with the superheated water in said boiler, when the water rushes into and iills the reservoir A to the level desired, care being taken not to ll completely the reservoir in order to leave sufficient steam room. The car is then prepared for the trip, and as it returns to the station at the end of the trip the Water yet remaining in the reservoir is discharged into a close vessel, and pumped back into the stationary boiler. I have thus invented a machine, which, intrinsically is not only as economical as the cheapest motor at present known 5 but, which, for the purposes intended, is practically much cheaper and safer than the ordinary steam-engine. As expla-ined above, any number of cars can be run by van indenite number of steam-engines, by

means of one single iire at a central depot.`

pellin g cars of highlyheated water, from which steam is carried off and worked, said highly heated water being contained in a reservoir disconnected from the boiler where it is heated, and carried on or by the cars it is to propel, substantially as described.

EMILE LAMM.

Witnesses:

THEO. M. HYDE, MICHAEL V. DYAE. 

